Fe- and Al-Doped Apatite-Type Lanthanum Silicates: Structure and Property Characterization
Научная публикация
| Общее |
Язык:
Английский,
Жанр:
Статья (Full article),
Статус опубликования:
Опубликована,
Оригинальность:
Оригинальная
|
| Конференция |
Electroceramics XI Conference
31 авг. - 4 сент. 2008
,
Manchester
|
| Журнал |
Solid State Ionics
ISSN: 0167-2738
|
| Вых. Данные |
Год: 2009,
Том: 180,
Номер: 11-13,
Страницы: 796-799
Страниц
: 4
DOI:
10.1016/j.ssi.2008.12.042
|
| Ключевые слова |
Apatite-type lanthanum silicate, IR spectroscopy, Transport properties |
| Авторы |
Kharlamova T.
1
,
Pavlova S.
1
,
Sadykov V.
1
,
Krieger T.
1
,
Batuev L.
1
,
Muzykantov V.
1
,
Uvarov N.
2
,
Argirusis Chr.
3
|
| Организации |
| 1 |
Boreskov Institute of Catalysis SB RAS, 630090 Novosibirsk, Russia
|
| 2 |
Institute of Solid State Chemistry and Mechanochemistry SB RAS, 630128 Novosibirsk, Russia
|
| 3 |
Clausthal University of Technology, 38678 Clausthal-Zellerfeld, Germany
|
|
Информация о финансировании (1)
|
1
|
European Commission
|
33410 FP6-2004-NMP-TI-4 STREP MATSILC
|
For the first time the local structure of Al- and Fe-doped apatite-type lanthanum silicates (ATLS) of different stoichiometries was systematically studied by using IR spectroscopy. In addition to previous 29Si MAS NMR study, data obtained confirm the possibility of [SiO4] group interaction in ATLS, being favored by the presence of cation vacancies in the apatite. Transport properties of the systems were studied by impedance spectroscopy and oxygen isotope exchange technique. The latter indirectly shows that not only channel/interstitial oxygen atoms can be involved in the oxide-ion migration but also those of tetrahedrons.